Taylor Swift is finally seen rapping in a new Apple ad, and enjoying it to the extent that she falls down on the treadmill, just when the next line reads, "Distractingly good. All the music you want," and she still keeps rapping after falling flat on the floor in the funniest commercial.

The pop star wears her perfect make-up and hair for the ad, as she sings to Future's "Jumpman." Then as she gets rapping, she gets distracted and -- dangerously falls on the moving treadmill which throws her off to the floor. And then... she keeps singing.

The video is titled Taylor vs. Treadmill.

This hilarious ad comes after Swift's famous incidence with Apple last year, when the company gave 90-month free streaming to customers, without thinking a tad (!) about the singers.

(Photo : Eva Rinaldi/Flickr/CC)

She wrote a letter to Apple music and expressed her displeasure over this practice, which Swift called, "shocking, disappointing and completely unlike this historically progressive and generous company."

After the letter went public, Apple said that they would begin to pay artists royalties for the music that is passed free to the Apple customers.

But she did not put her music on Apple streaming for a long time after the company made the decision. Finally, one day, she wrote on Twitter: "After the events of this week, I've decided to put 1989 on Apple Music...and happily so. This is simply the first time it's felt right in my gut to stream my album. Thank you, Apple, for your change of heart."